CN219739981U - Remote monitoring takes lithium cell of initiative balanced, fire prevention theftproof certainly - Google Patents
Remote monitoring takes lithium cell of initiative balanced, fire prevention theftproof certainly Download PDFInfo
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- CN219739981U CN219739981U CN202223460212.7U CN202223460212U CN219739981U CN 219739981 U CN219739981 U CN 219739981U CN 202223460212 U CN202223460212 U CN 202223460212U CN 219739981 U CN219739981 U CN 219739981U
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- battery
- cell unit
- battery cell
- lithium battery
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 52
- 238000012544 monitoring process Methods 0.000 title claims abstract description 33
- 230000002265 prevention Effects 0.000 title claims description 13
- 239000011159 matrix material Substances 0.000 claims abstract description 45
- 238000004146 energy storage Methods 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 11
- 230000002457 bidirectional effect Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 7
- 238000007599 discharging Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000036541 health Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The utility model relates to the technical field of batteries, in particular to a remote monitoring lithium battery with active equalization and fireproof anti-theft functions, which is used for actively equalizing the electric quantity in a battery cell unit in the lithium battery, and is characterized in that the lithium battery comprises: the first switch is arranged on a circuit connected in series between the battery cell units; an active equalization unit comprising: a plurality of voltage acquisition modules; the matrix switch is electrically connected with the anode and the cathode on each cell unit and is also connected to the charging end on the lithium battery to charge the cell units in parallel; the processor is electrically connected with the matrix switch and the first switch, and is electrically connected with the voltage acquisition module to acquire the voltage value of the battery cell unit; the utility model can reduce the influence on the cycle times of the lithium battery in the active equalization process.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a lithium battery with a remote monitoring function, active equalization function, fireproof function and anti-theft function.
Background
The current new energy battery is generally formed by connecting a plurality of lithium batteries in series, the capacity of the battery is not completely the same due to the influence of the processing technology and materials of the battery, the performance of the new energy lithium battery pack is influenced by the battery with the smallest capacity, the battery with the smallest capacity is fully charged at first in order to prevent the battery from being overcharged during charging, but the battery with larger capacity is not fully charged, so that the waste of the battery capacity is caused, the battery with the smallest capacity is fully discharged during discharging, and the battery with larger capacity still has electric quantity in order to prevent the excessive use, so that the waste of the electric quantity is caused.
In order to solve the above problems, a battery equalization technology is classified into active equalization and passive equalization, wherein the principle of passive equalization is that when a battery with higher voltage is charged, the battery with higher voltage is discharged, the electric quantity of the battery with higher voltage is consumed, so that the voltage of the whole battery is equalized, but the mode has the problems of electric energy waste and high heat dissipation requirement; the principle of the active equalization technology is that the electric quantity of a battery with higher voltage is released and stored, then the stored electric energy is input into a battery with lower voltage to fulfill the aim of electric quantity equalization, but the charge and discharge times of the battery can be increased in the equalization mode, and the circulation times of the battery can be reduced in the mode that the current lithium battery has circulation times display, so the utility model provides a lithium battery with active equalization, fire prevention and theft prevention for remote monitoring.
Disclosure of Invention
The utility model aims to provide a remote monitoring lithium battery with active equalization and fireproof and antitheft functions, so as to solve the problem that the current active equalization technology of the lithium battery has a great influence on the cycle times of the battery.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a remote monitoring is from taking initiative balanced and fire prevention theftproof's lithium cell for the electric quantity in the battery cell unit in the initiative balanced lithium cell, its characterized in that, lithium cell includes:
the first switch is arranged on a circuit connected in series between the battery cell units;
the active equalization unit is used for actively equalizing the electric quantity of the battery cell unit, wherein the active equalization unit comprises:
the voltage acquisition modules are used for acquiring the voltage of each cell unit;
the matrix switch is electrically connected with the anode and the cathode on each cell unit and is also connected to the charging end on the lithium battery to charge the cell units in parallel;
the processor is electrically connected with the matrix switch and the first switch, and is electrically connected with the voltage acquisition module to acquire the voltage value of the battery cell unit.
Further, the matrix switch is composed of a plurality of analog switches, wherein one end of one half of the analog switches in the matrix switch is electrically connected with the positive electrode of the charging end, the other end of the analog switches is electrically connected with the positive electrode of the battery cell unit respectively, one end of the other half of the analog switches in the matrix switch is electrically connected with the negative electrode of the charging end, and the other end of the analog switches in the matrix switch is electrically connected with the negative electrode of the battery cell unit respectively.
Further, the lithium battery further includes:
the energy storage module is electrically connected with one end, far away from the battery cell unit, of the matrix switch so as to be connected with a single battery cell unit;
the bidirectional charging module is electrically connected between the matrix switch and the energy storage module to control the current flow direction between the energy storage module and the battery cell unit.
Further, the lithium battery further includes:
the power monitoring module is electrically connected between the matrix switch and the energy storage module to detect the charging power of the energy storage module, and the power monitoring module is electrically connected with the battery cell unit.
Further, the lithium battery further includes:
and the communication unit is electrically connected with the processor to transmit data.
Further, the first switch is an analog switch.
Further, the lithium battery further includes:
and the vibration detection unit is electrically connected with the processor and is used for detecting vibration of the lithium battery.
In summary, compared with the prior art, the utility model has the following beneficial effects:
in the remote monitoring lithium battery with active equalization and fire prevention and theft prevention disclosed by the embodiment of the utility model, each cell unit is connected with a matrix switch in the charging process, so that each cell unit can be controlled independently, and for the cell unit reaching a first threshold value, the matrix switch is disconnected from a charger, so that the cell unit reaching the first threshold value cannot generate an overcharge problem, and the remaining cell units not reaching the first threshold value continue to be charged.
Drawings
Fig. 1 is a schematic structural diagram of a remote monitoring lithium battery with active equalization and fire prevention and theft prevention according to the present utility model.
Fig. 2 is a schematic circuit diagram of a remote monitoring lithium battery with active equalization and fire and theft prevention according to the present utility model.
Reference numerals: 1. a cell unit;
2. a first switch;
3. an active equalization unit; 31. a voltage acquisition module; 32. a matrix switch; 33. an energy storage module; 34. a power monitoring module; 35. a bidirectional charging module;
4. a charging end;
5. a processor;
6. a vibration detecting unit;
7. a communication unit;
8. and a load port.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.
Fig. 1 and fig. 2 show a remote monitoring lithium battery with active equalization and fire-proof and anti-theft functions according to an embodiment of the present utility model, for actively equalizing the electric quantity in a battery cell unit 1 in the lithium battery, the lithium battery includes:
the first switch 2 is arranged on a circuit connected in series between the battery cell units 1 and 1;
an active equalization unit 3, configured to actively equalize the electric quantity of the battery cell unit 1, where the active equalization unit 3 includes:
a plurality of voltage acquisition modules 31, wherein the voltage acquisition modules 31 are used for acquiring the voltage of each cell unit 1;
a matrix switch 32, wherein the matrix switch 32 is electrically connected with the positive electrode and the negative electrode on each cell unit 1, and the matrix switch 32 is also connected to a charging terminal 4 on a lithium battery to charge the cell units 1 in parallel;
the processor 5 is electrically connected with the matrix switch 32 and the first switch 2, and the processor 5 is electrically connected with the voltage acquisition module 31 to acquire the voltage value of the battery cell unit 1;
in this embodiment, when the lithium battery is in use, the first switch 2 is in a normally open state, the battery cells 1 are connected in series, the processor 5 controls the first switch 2 to be disconnected when in charging, at this time, the battery cells 1 are connected in parallel, the processor 5 controls the matrix switch 32 to be opened, wherein a port, which is connected with the positive electrode on the battery cells 1, of the matrix switch 32 is electrically connected with the positive electrode of the charging end 4, a port, which is connected with the negative electrode on the battery cells 1, of the matrix switch 32 is electrically connected with the negative electrode of the charging end 4, and the battery cells 1 are connected in parallel;
during charging, since the charger is connected to the charging terminal 4 to charge the battery cells 1 in parallel, each battery cell 1 is charged independently, at this time, the voltage acquisition module 31 detects the voltage of each battery cell 1, when detecting that the voltage of the battery cell 1 reaches the first threshold, the processor 5 controls the matrix switch 32 connected to the battery cell 1 reaching the first threshold to be closed, and the rest battery cells 1 not reaching the first threshold continue to be charged, until the matrix switch 32 is opened after reaching the first threshold, and when the voltage of the battery cell 1 reaches the first threshold, the processor 5 opens the matrix switch 32 and controls the first switch 2 to be closed, at this time, all the battery cells 1 are full;
in the charging process, each cell unit 1 is connected with a matrix switch 32, so that each cell unit 1 can be controlled independently, and for the cell units 1 reaching a first threshold value, the matrix switch 32 is disconnected from a charger, so that the cell units 1 reaching the first threshold value cannot generate an overcharge problem, and the remaining cell units 1 not reaching the first threshold value continue to be charged, and in the charging process, the cell units 1 only have a charging process and have no discharging process, so that the charging and discharging times of the cell units 1 are recorded only once and no additional charging and discharging times are generated, and the influence on the cycle times of the lithium battery is reduced in the active balancing process;
in this embodiment, the electrical connection is through a wire or a conductive strip on the circuit board, and the connection modes of the electrical connection and the wire or the conductive strip are all connected by adopting a welding mode;
as a preferred implementation manner in this embodiment, the matrix switch 32 is composed of a plurality of analog switches, wherein one end of a half of the analog switches in the matrix switch 32 is electrically connected with the positive electrode of the charging terminal 4, the other end is electrically connected with the positive electrode of the battery cell unit 1, one end of the remaining half of the analog switches in the matrix switch 32 is electrically connected with the negative electrode of the charging terminal 4, the other end is electrically connected with the negative electrode of the battery cell unit 1, the analog switches in the matrix switch 32 are electrically connected with the processor 5 to receive the control of the processor 5, and when the analog switches are opened or closed, the processor 5 sends a control signal to the analog switches to control the analog switches in the matrix switch 32;
in some examples, the processor 5 is a single-chip microcomputer;
in some examples, the voltage acquisition module 31 is a voltage detection chip, and the voltage acquisition module 31 is electrically connected to the processor 5 through a conductive strip to transmit a voltage signal of the battery cell 1 to the processor 5.
As a further embodiment of the present utility model, as shown in fig. 1 and 2, the lithium battery further includes:
the energy storage module 33 is electrically connected with one end of the matrix switch 32 away from the battery cell unit 1 so as to connect with a single battery cell unit 1;
the power monitoring module 34 is electrically connected between the matrix switch 32 and the energy storage module 33 to detect the charging power of the energy storage module 33, and the power monitoring module 34 is electrically connected with the battery cell unit 1;
a bidirectional charging module 35, wherein the bidirectional charging module 35 is electrically connected between the matrix switch 32 and the energy storage module 33 to control the current flow direction between the energy storage module 33 and the battery cell unit 1;
in this embodiment, during the use of the lithium battery, the voltage of the battery cell unit 1 with a low capacity drops rapidly, the voltage of the battery cell unit 1 with a high capacity drops slowly, when the voltage difference of the battery cell unit 1 exceeds a second threshold value, the processor 5 calculates the electric quantity that the battery cell unit 1 with a high voltage needs to input to the battery cell unit 1 with a low voltage, at this time, the processor 5 turns on a matrix switch 32 connected with the battery cell unit 1 with a high voltage, the bidirectional charging module 35 controls the battery cell unit 1 with a high voltage to charge the energy storage module 33, the power monitoring module 34 detects the charging power, when the battery cell unit 1 with a high voltage charges the calculated electric quantity into the energy storage module 33, the matrix switch 32 disconnects the connection with the battery cell unit 1 with a high voltage, then the matrix switch 32 connects the battery cell unit 1 with a low voltage, the bidirectional charging module 35 controls the energy storage module 33 to charge the battery cell unit 1 with a low voltage, so that the battery cell unit 1 with a low voltage is disconnected, and the bidirectional charging module 35 is disconnected after the battery cell unit 1 with a high voltage is charged, and the battery cell unit 1 is charged with a balanced;
in some examples, the power monitoring module 34 is a power detection chip;
when the charging terminal 4 is connected to a charger, the processor 5 disconnects the energy storage module 33 from the charging terminal 4 to prevent the energy storage module 33 from being charged.
As a further embodiment of the present utility model, the lithium battery further includes:
the communication unit 7 is electrically connected with the processor 5 to transmit data;
in this embodiment, the processor 5 is electrically connected to a monitoring platform, the processor 5 receives the voltage of the electrical core unit 1 sent by the voltage obtaining module 31 and sends the voltage to the monitoring platform through the communication unit 7, the monitoring platform monitors the voltage of the electrical core unit 1 and is used for judging the health of the electrical core unit 1, in some examples, the monitoring platform is a cloud server, and the monitoring platform also sends the judged health condition of the electrical core unit 1 to an intelligent terminal of a user, in this embodiment, the method for judging the health condition of the electrical core unit 1 by the monitoring platform is the prior art and is not repeated herein;
in this embodiment, the communication unit 7 may be a GPRS data transmission module, the communication unit 7 is directly connected to the monitoring platform through a GPRS network, the communication unit 7 may also be a CAN network, the processor 5 sends data to a communication computer of a device where the lithium battery is located through the communication unit 7, and then the data is sent to the monitoring platform by the device where the lithium battery is located, for example, the device where the lithium battery is located is an electric vehicle;
as a preferred implementation manner in this embodiment, the lithium battery further has a remote power-off function, and when the processor 5 controls any one of the first switches 2 to be turned off, the battery cells 1 cannot be connected in series, and an open circuit is formed between the battery cells 1 and a load connected to the load port 8, so that the battery cells 1 cannot be powered;
in this embodiment, the first switch 2 is an analog switch.
As a further embodiment of the present utility model, the lithium battery further includes:
the vibration detection unit 6 is electrically connected with the processor 5 and is used for detecting vibration of the lithium battery;
in this embodiment, the vibration detecting unit 6 sends a vibration signal to the processor 5, the processor 5 sends the vibration signal to the monitoring platform through the communication unit 7, the monitoring platform determines the similarity between the frequency of vibration and the preset frequency, and when the similarity reaches a third threshold value, the monitoring platform determines that the battery is stolen, and at this time, the monitoring platform informs the user that the user can control the first switch 2 to be turned off through the processor 5 so as to achieve the purpose of remote power failure;
in some examples, the shock detection unit 6 is a shock sensor.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A remote monitoring is from taking initiative balanced and fire prevention theftproof's lithium cell for the electric quantity in the battery cell unit in the initiative balanced lithium cell, its characterized in that, lithium cell includes:
the first switch is arranged on a circuit connected in series between the battery cell units;
the active equalization unit is used for actively equalizing the electric quantity of the battery cell unit, wherein the active equalization unit comprises:
the voltage acquisition modules are used for acquiring the voltage of each cell unit;
the matrix switch is electrically connected with the anode and the cathode on each cell unit and is also connected to the charging end on the lithium battery to charge the cell units in parallel;
the processor is electrically connected with the matrix switch and the first switch, and is electrically connected with the voltage acquisition module to acquire the voltage value of the battery cell unit.
2. The lithium battery with active equalization and fire prevention and theft prevention function according to claim 1, wherein the matrix switch is composed of a plurality of analog switches, wherein one end of one half of the analog switches in the matrix switch is electrically connected with the positive electrode of the charging end, the other end of the analog switches is electrically connected with the positive electrode of the battery cell unit, one end of the other half of the analog switches in the matrix switch is electrically connected with the negative electrode of the charging end, and the other end of the analog switches is electrically connected with the negative electrode of the battery cell unit.
3. The remotely monitored lithium battery with active equalization and fire and theft protection according to claim 1, further comprising:
the energy storage module is electrically connected with one end, far away from the battery cell unit, of the matrix switch so as to be connected with a single battery cell unit;
the bidirectional charging module is electrically connected between the matrix switch and the energy storage module to control the current flow direction between the energy storage module and the battery cell unit.
4. The remotely monitored lithium battery with active equalization and fire and theft protection according to claim 3, further comprising:
the power monitoring module is electrically connected between the matrix switch and the energy storage module to detect the charging power of the energy storage module, and the power monitoring module is electrically connected with the battery cell unit.
5. The remotely monitored lithium battery with active equalization and fire and theft protection according to any one of claims 1 to 4, further comprising:
and the communication unit is electrically connected with the processor to transmit data.
6. The remotely monitored lithium battery with active equalization and fire and theft protection according to claim 5, wherein said first switch is an analog switch.
7. The remotely monitored lithium battery with active equalization and fire and theft protection according to claim 5, further comprising:
and the vibration detection unit is electrically connected with the processor and is used for detecting vibration of the lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223460212.7U CN219739981U (en) | 2022-12-23 | 2022-12-23 | Remote monitoring takes lithium cell of initiative balanced, fire prevention theftproof certainly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223460212.7U CN219739981U (en) | 2022-12-23 | 2022-12-23 | Remote monitoring takes lithium cell of initiative balanced, fire prevention theftproof certainly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219739981U true CN219739981U (en) | 2023-09-22 |
Family
ID=88057302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223460212.7U Active CN219739981U (en) | 2022-12-23 | 2022-12-23 | Remote monitoring takes lithium cell of initiative balanced, fire prevention theftproof certainly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219739981U (en) |
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2022
- 2022-12-23 CN CN202223460212.7U patent/CN219739981U/en active Active
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